What Are Granulomas?
involved. A cheese-like substance within the granuloma that has been extracted from a lung will point toward a tuberculosis infection as the culprit. Doctors often prefer to biopsy a nodule rather that assume that it is a granuloma. On X-ray images and various diagnostic scans, granulomas are difficult to distinguish from other nodules that might be cancerous. Because of this, it is considered best to biopsy the nodule and let the laboratory make the determination about its composition. Using dyes and microscopes, most labs have little trouble identifying a granuloma.
